| Louis-Étienne de Thouvenin | |
| Birth Place: | France |
| Death Place: | France |
| Nationality: | French |
| Occupation: | French Army general, inventor |
| Known For: | Inventor of carabine à tige |
Louis-Étienne de Thouvenin (1791–1882) was a French Army general. He invented the carabine à tige ("stem rifle" or "pillar breech rifle"), based on a method by which muzzle-loading rifles could be easily and effectively loaded.[1]